/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* 标签样式 */
.tag {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
}

.tag:hover {
    transform: translateY(-1px);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.tag.selected {
    font-weight: 600;
    background-color: #dbeafe;
    color: #1e40af;
}

/* 表格样式 */
.papers-table {
    width: 100%;
    border-collapse: collapse;
}

.papers-table th {
    background-color: #f9fafb;
    text-align: left;
    padding: 0.75rem;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid #e5e7eb;
}

.papers-table td {
    padding: 0.75rem;
    border-bottom: 1px solid #e5e7eb;
    vertical-align: top;
}

/* 公司列特殊样式 */
.papers-table td:nth-child(2) {
    font-size: 1rem;
    font-weight: 500;
}

.papers-table tr:hover {
    background-color: #f9fafb;
}

/* 空状态样式 */
.empty-state {
    padding: 4rem 2rem;
    text-align: center;
}

/* 响应式调整 */
@media (max-width: 640px) {
    .papers-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}